Display: review r2 fixes

image_state_test.go

@@ -0,0 +1,35 @@
+package mujica
+
+import (
+	"errors"
+	"testing"
+
+	"github.com/egoist/mygo/ui"
+)
+
+func TestImageErrorTextNeedsRoom(t *testing.T) {
+	for _, tc := range []struct {
+		w    float32
+		text bool
+	}{{200, true}, {80, false}} {
+		ready := false
+		tt := ui.NewTester(func(c *ui.Context) {
+			Use(c, Settings{})
+			if ready {
+				Image(c, nil, ImageOptions{Width: tc.w, Height: 60, Err: errors.New("404")})
+			}
+		}, 300, 200)
+		ready = true
+		tt.Frame()
+		n := 0
+		for _, s := range tt.Texts() {
+			if s == "Image failed to load" {
+				n++
+			}
+		}
+		// One is the box's name; a second is the visible text.
+		if got := n == 2; got != tc.text {
+			t.Errorf("width %v: error text shown %v, want %v (%v)", tc.w, got, tc.text, tt.Texts())
+		}
+	}
+}